From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 4941 invoked by alias); 9 Sep 2015 13:10:42 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 4788 invoked by uid 48); 9 Sep 2015 13:10:34 -0000 From: "trippels at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug sanitizer/67515] "invalid vptr" false positive or crash from ubsan for non-virtual call in initializer list Date: Wed, 09 Sep 2015 13:10:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: sanitizer X-Bugzilla-Version: 6.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: trippels at gcc dot gnu.org X-Bugzilla-Status: REOPENED X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2015-09/txt/msg00723.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67515 --- Comment #5 from Markus Trippelsdorf --- (anonymous namespace)::getVtablePrefix (Object=0x401460 ) at ../../../../gcc/libsanitizer/ubsan/ubsan_type_hash.cc:200 200 if (Prefix->Offset > 0 || !Prefix->TypeInfo) (gdb) bt #0 (anonymous namespace)::getVtablePrefix (Object=0x401460 ) at ../../../../gcc/libsanitizer/ubsan/ubsan_type_hash.cc:200 #1 __ubsan::checkDynamicType (Object=Object@entry=0x401460 , Type=0x400d78 , Hash=17814158270761423139) at ../../../../gcc/libsanitizer/ubsan/ubsan_type_hash.cc:219 #2 0x00007ffff72d8203 in HandleDynamicTypeCacheMiss (Data=0x401320, Pointer=4199520, Hash=, Opts=...) at ../../../../gcc/libsanitizer/ubsan/ubsan_handlers_cxx.cc:31 #3 0x00007ffff72d8963 in __ubsan::__ubsan_handle_dynamic_type_cache_miss (Data=, Pointer=, Hash=) at ../../../../gcc/libsanitizer/ubsan/ubsan_handlers_cxx.cc:74 #4 0x0000000000400a95 in main ()